True of False: Hemoglobin releases the same amount of oxygen to all the tissues regardless of variations in their metabolic rate.

Answer: False

Explanation:

Hemoglobin can be defined as red protein that transports oxygen to various parts of the body according to its need.

It does not transports the same amount of oxygen to all the tissues. Some tissues of the body might require more more oxygen and some cells might require less amount of oxygen.

It depends on the state of activity. It transports more oxygen to the tissue that require it the most.

Example: The skeletal muscles of the body require more oxygen and it can be more than 80%.

Hence, the given statement is false and hemoglobin does not releases the same amount of oxygen to each and every tissue of the body.